In 2012, Machine Gun Kelly (MGK) posted a
tweet about Eminem's daughter, Hailie Mathers (who was then sixteen). The tweet read, "ok so I just saw a picture of Eminem's daughter...and I have to say, she is hot as fuck, in the most respectful way possible cuz Em is king". MGK claimed to apologize to Eminem behind the scenes. After this, in 2015, MGK claimed that Eminem banned him from going to
Shade 45, a
SiriusXM radio station owned by Eminem. In 2017, MGK was on
Power 106 FM and did a freestyle with The LA Leakers. During this, he again claimed Eminem had banned him from Shade 45. MGK also collaborated on
a song with
Tech N9ne in March 2018, and sent disses towards Eminem. On August 31, 2018, Eminem released a surprise album
Kamikaze in which he dissed several artists, including MGK. On the song "
Not Alike" from
Kamikaze, Eminem made several disses aimed at MGK. Two days later, MGK responded to "Not Alike" with the song "Rap Devil", releasing a music video for the song as well on September 3, 2018. After MGK's response, Eminem released an interview with
Sway Calloway, in which Eminem was asked about the feud. Eminem explained that he did not want to respond initially, because it would just benefit MGK's exposure. On September 14, 2018, Eminem released "Killshot". On September 19, 2018, the song was officially released as a
single. ==Critical reception==